I decided to start a new post in regards to your plant. Mine looks very different from yours because it is a different variety. I am guessing my plant is Cotyledon orbiculata var. oblonga 'Macrantha'  a common plant in my area. Below is my plant  I had to remove some leaves after some recent storm damage. The mother plant was about 3 ft with a pink flower whose style is similar to the plant in the foreground.
{{gwi:732578}}
Here is a link to a nursery that has a similar plant:
http://www.smgrowers.com/products/plants/plantdisplay.asp?plant_id=457
I am no expert on plant identification, but if your plant is Cotyledon orbiculata some possible varieties (which I doubt your plant is) are below. As has been said previously growing conditions affect the plant, etc. Your leaves are also wavy.
Cotyledon orbiculata v. orbiculata
Cotyledon orbiculata v. dactylopsis
Cotyledon orbiculata v. candulata
Cotyledon orbiculata var. oblonga 'Flavida' - Finger Aloe
Cotyledon Orbiculata "Silver Waves"
Cotyledon orbiculata v higginsiana
This list is probably not complete & there are probably errors. There are supposed to be 5 varieties of this plant & some cultivars are included. You will probably need to see the flower for an ID, but maybe someone else can narrow it down a bit more based on the leaf shape.
gabro14
dufflebag2002
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